He is the mummified corpse of King Tut, from the Incredibox mod Armed. He is a live mummy that is often accompanied by Lester, his friend. Lester also affectionatly calls Nimbus "TuTu" as they have been friends since Nimbus was alive. Nimbus is also about 7 ft tall, which makes him a bit short, polo wise. He speaks in growls and groans as his vocal cords have rotten away, leaving him unable to functionally speak.